tommy020

PPL LET ME KNOW WHICH SIZE FOR PERFORMANCE THROTTLE BODY TO GO WITH THE BEST. IS THERE ANY T/B'S MADE FOR PRELUDES AND INTEGRASGSR'S WILL BOLT ON??? WHERE i CAN BUY ONE???

CleanCL

iTrader: (4)

gah, a search would have revealed these answers.

theres a place called King Motorsports (i believe they are in FL or GA) that bores our throttle body and replaces the plate (the most important part). though im sure a good machine shop/performance shop can do it.

Type S Zero

www.maxbore.com can do it for cheap too

poisx7

iTrader: (1)

has not been proven to give better HP, u might actually loose Hp to this , unless u running a turbo or FI

tommy020

who told you that I don't have forced induction???

CleanCL

iTrader: (4)

that's not true at all. where have you gotten this information.

NiteQwill

You don't lose HP, regardless of NA or FI.

withoutcomp1

iTrader: (1)

Is it worth doing if we keep the vsa module? Because i called king and they told me it wasn't worth doing unless i also did the vsa but they said they wouldn't do it!

Pure Adrenaline

iTrader: (2)

Yeah, they are right. What's the point of boring out the secondary throttle body when you are keeping the primary the same size? You're not going to increase the overall volume of airflow.

typeR

you could always do what i did

Sun Diego CL-S

and that is....

typeR

...
__________________
'01 3.5 CL-S , headers,6mt ICE BOX,SPOON 160* T stat/fan switch/cap,LW crank pulley,Koni yellow SP3,
SSR competion,UNI Chip,VSA delete.Thermo block intake spacer,King P&P TB, p$p upper/lower intake

coming soon:full exhaust.

PB 1/4 13.306 @ 105.83

Sun Diego CL-S

ah. i've seen a few you fellers do that. lotsa work involved?

typeR

nope...its easy

poisx7

iTrader: (1)

pls dont stop...... i am listening

typeR

just leave the TSC valve connected to it's harness and leave it in the engine bay but not inline from the intake to the TB or....take it out altogether and add a set of resistors that tell the ECU it's still there...

johntypes

I known because I did it , no change either you turbo or supercharge it,end of subject

poisx7

iTrader: (1)

thanks you.......

brianlin87

iTrader: (1)

explain how you could potentially 'lose' HP please.

CleanCL

iTrader: (4)

didnt you also do headwork with the ported TB and IM?

dj5

I had King Motor Sports (by the way they are located in Michigan) bore out both my primary and secondary throttle bodies. No real difference in performance, so save your money for something like the UR crank pulley or icebox.

typeR

i had King bore my TB and i took out my TCS valve and P&P/ my upper aND lower intake manifold and did notice performance improvement....mine is based on track times...on what do you base your claim,and BTW i sent my throttle body to King motorsports ulimited and they are in wisconsin

mclarenf3387

Your car=not a normal CL-S motor. Can't compare apples to oranges.

typeR

that doesnt mean a non stroker bolt on wont benefit?

mclarenf3387

You also did the manifolds, not just the throttle bodies.

dj5

You are correct, King Motor Sports in located in Wisconsin. I knew it was one of those cold snowy northern states.

I had a dyno done before and after they bored out both primary and secondary TB. There was no notable increase in the dyno pulls. The speed shop then installed the lightweight underdrive crank pulley. With the UR pulley, it gained ~ 7 whp.

I paid $300 to have both bored out. Not worth the money. But then again, neither was the $600 Unichip I bought. Unichip only gained about 3 whp after a custom tune.

shinybluecls

anyone know where i can find a tube to fill in that gap between the icebox tube and the tb after taking out the vsa tb? i dont feel like paying $50 to have comptech ship out the 6pd version of that middle tube. went to home depot...all their abs plastic tubes are way too big or too small.

power3dfx

boring out your TB is useless because the inlet of the IM it connects to is still smaller. kind of like connecting 3 inch pipe to 2 inch pipe. If you want to do this, you should P&P your IM as well. TypeR did this and this is why he noticed a gain. It will help a regular 3.2 with I/H just as long as you have everything bigger and capable of flowing more air (more volume). I dont know about you guys, but i would never remove the VSA. It will help you one day and if you dont have it, well then....

typeR

at minimum you'd want to port match the TB inlet and removing the TCS valve for track day is easy enough, and i got about 8 on my UNI chip...